Am 02.10.2016 um 17:00 schrieb Per olof Ljungmark:
On 2016-10-02 16:50, Reindl Harald wrote:


Am 02.10.2016 um 16:46 schrieb Per olof Ljungmark:
What is the best way to debug a SERVFAIL problem? I have tried to ramp
up the trace level a lot but that did not return anything useful.

It is only one zone in question, namely the PTR for our external subnet.
What puzzles me the most is that a secondary on the same subnet answers
just fine for thesame query. All forwards zones resolves good as well.

BIND version is 9.10.4-P3

most likely some error in the zonefile, look at named logs

that the secondary answers is normal because if the master refuses to
load a zone it never reaches the slave and start to fail there only when
it expires before the error is fixed

hence master/slave while in most environemnts you could technically
generate the identical zone-files on all nameservers but then with the
same errors and so all would fail (in case of PTR and mailservers with
horrible results)

There is nothing useful in the logs, hence my question above. The zone
files are identical on master and slaves so I doubt there is a problem
with that.

you need to provide the startup logs as well as the log-configuration
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